Tbh, I personally like the transmute change as it is.

If svirfs or felar could be druids I'd have rolled one long ago.
I'm quite used to metal restrictions, from playing savage rangers. If anything, it makes one less obsessive about gear and having to compete for it.

Also, protection from metals is now more useful, and I'm happy enough that there won't be another druid with the mask of Anazu.